The first picture where the walls are bright white would have the windows look like a bright glowing rectangle vs. being able to see the outdoors through the wi

The first picture where the walls are bright white would have the windows look like a bright glowing rectangle vs. being able to see the outdoors through the window if they didn't use HDR. They overexposed the interior a little bit, which means the outdoors would especially look like bright white rectangles. Even when you have a lot of windows the indoors is significantly dimmer than the outdoors on sunny days unless the room is a greenhouse. They did the HDR so well that you couldn't tell it was HDR. Artificial HDR is a choice, just like natural HDR is in that photo. In pictures 8 and 9 they didn't HDR, so the windows look like white rectangles and very overexposed. In picture 17 they did the HDR treatment on the horizontal windows, but did not on the skylights. Those skylights should show up as blue vs. white rectangles if they were doing the HDR treatment on the entire photo, etc. I think they also use off camera flash and bounced it off the ceiling, which is why I think it looks kind of glowy-white with all the white walls and floors in that place.